diff --git a/client/src/models/conversation.ts b/client/src/models/conversation.ts
new file mode 100644
index 0000000..484f166
--- /dev/null
+++ b/client/src/models/conversation.ts
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2022 Savoir-faire Linux Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation; either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this program.  If not, see
+ * <https://www.gnu.org/licenses/>.
+ */
+import { ConversationInfos, IConversation, IConversationMember, Message } from 'jami-web-common';
+
+import { Contact } from './contact';
+
+export interface ConversationMember extends IConversationMember {
+  contact: Contact;
+}
+
+export class Conversation implements IConversation {
+  readonly id: string;
+  members: ConversationMember[];
+  messages: Message[] = [];
+  infos: ConversationInfos = {};
+
+  constructor(id: string, members?: ConversationMember[]) {
+    this.id = id;
+    this.members = members ?? [];
+  }
+
+  static fromInterface(conversationInterface: IConversation) {
+    const conversation = new Conversation(
+      conversationInterface.id,
+      conversationInterface.members.map((member) => {
+        const contact = Contact.fromInterface(member.contact);
+        return { contact } as ConversationMember;
+      })
+    );
+
+    conversation.messages = conversationInterface.messages;
+    conversation.infos = conversationInterface.infos;
+
+    return conversation;
+  }
+
+  static fromSingleContact(contact: Contact) {
+    return new Conversation('', [{ contact } as ConversationMember]);
+  }
+
+  getDisplayUri() {
+    return this.id ?? this.getFirstMember().contact.uri;
+  }
+
+  getDisplayName() {
+    if (this.members.length !== 0) {
+      return this.getFirstMember().contact.registeredName;
+    }
+    return this.getDisplayUri();
+  }
+
+  getDisplayNameNoFallback() {
+    if (this.members.length !== 0) {
+      return this.getFirstMember().contact.registeredName;
+    }
+  }
+
+  getFirstMember() {
+    return this.members[0];
+  }
+
+  addMessage(message: Message) {
+    if (this.messages.length === 0) {
+      this.messages.push(message);
+    } else if (message.id === this.messages[this.messages.length - 1].linearizedParent) {
+      this.messages.push(message);
+    } else if (message.linearizedParent === this.messages[0].id) {
+      this.messages.unshift(message);
+    } else {
+      console.log('Could not insert message', message.id);
+    }
+  }
+
+  addMessages(messages: Message[]) {
+    for (const message of messages) {
+      this.addMessage(message);
+    }
+  }
+}